There are 7 mathematicians whose last name begin with OKR.
| Okrah, Kwame | 2015 | |
| Okrah, Peter | Stanford University | 1992 |
| Okrasa, Karolina | Politechnika Warszawska | 2024 |
| Okrasinski, Wojciech | Uniwersytet Wrocławski | 1979 |
| Okrent, Howard | Massachusetts Institute of Technology | 1977 |
| Okromeshko, N. | Lomonosov Moscow State University | 1983 |
| Okrut, Sergey | Vasyl Karazin Kharkiv National University | 1995 |